Conductive paste, electronic components, and multilayer ceramic capacitors

The conductive paste, featuring a rosin derivative and a butyral resin, addresses the adhesion issues in multilayer ceramic capacitors by improving substrate adhesion, thereby enhancing manufacturing efficiency and reducing misalignment.

JP7648003B2Active Publication Date: 2025-03-18SUMITOMO METAL MINING CO LTD
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Patent Information

Application Number
JP2024512631
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-03-28
Filing Date
2023-03-28
Publication Date
2025-03-18
Estimated Expiration
2043-03-28

AI Technical Summary

Technical Problem

Conductive pastes used in the manufacturing of multilayer ceramic capacitors do not provide sufficient adhesion between the dry film and the substrate when the pressing time is shortened or pressure is reduced during the heating and pressing process, leading to misalignment and decreased yield.

Method used

An electrically conductive paste containing a conductive powder, a rosin derivative with a hydroxyl group or an amine group, a binder resin, and an organic solvent, which improves adhesion with the substrate by inhibiting resin interaction and moderately softening the dry film.

Benefits of technology

The conductive paste enhances adhesion between the dry film and the green sheet, reducing misalignment and increasing yield, even under conditions of reduced pressing time and pressure.

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Abstract

Provided is a conductive paste with which adhesion to a base material can be further enhanced. This conductive paste contains a conductive powder, an additive, a binder resin, and an organic solvent, wherein the conductive paste contains, as an additive, a rosin derivative that includes a hydroxyl group or an amine group.
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